AFOS product CLIRFD
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CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL                                  
146 AM CDT SUN AUG 20 2017


................................... 

...THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 19 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1905 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         81    425 PM 100    1947  82     -1       85       
                                      1916                          
  MINIMUM         57    536 AM  44    1915  61     -4       67       
  AVERAGE         69                        72     -3       76      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          3.41 1990   0.15  -0.15     0.32    
  MONTH TO DATE    0.61                      2.90  -2.29     2.02    
  SINCE JUN 1     15.53                     11.50   4.03    12.08    
  SINCE JAN 1     34.38                     23.97  10.41    23.64    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0    MM   0.0    0.0      0.0     
  MONTH TO DATE    0.0                       0.0    0.0      0.0     
  SINCE JUN 1      0.0                       0.0    0.0      0.0     
  SINCE JUL 1      0.0                       0.0    0.0      0.0     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    1                         0      1        0       
  SINCE JUN 1     12                        34    -22        6       
  SINCE JUL 1      1                         3     -2        0       
                                                                     
 COOLING                                                             
  YESTERDAY        4                         7     -3       11       
  MONTH TO DATE  118                       147    -29      211       
  SINCE JUN 1    619                       596     23      741       
  SINCE JAN 1    655                       651      4      826       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION     S (180)      
  HIGHEST GUST SPEED    11   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED     2.8                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           600 AM                                     
 LOWEST     45           300 PM                                     
 AVERAGE    73                                                       

..........................................................

                                                                     
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   82       100      1947                    
 MINIMUM TEMPERATURE (F)   61        47      1940                    
                                             1897                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 20 2017........SUNRISE   609 AM CDT   SUNSET   749 PM CDT   
AUGUST 21 2017........SUNRISE   610 AM CDT   SUNSET   748 PM CDT   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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